System and method for providing security to a game controller device for electronic trading

ABSTRACT

A system for managing electronic trading, compnses an interface application including a mapping module that defines a plurality of controller signal relationships. Each controller signal relationship associates one or more of a plurality of game controller signals with one of a plurality of trading system commands associated with the electronic trading of financial instruments. The interface application receives a plurality of game controller signals generated by a game controller, and determines, based on the controller signal relationships, that one or more of the plurality of received game controller signals are erroneous. The interface application causes the communication of a command to lock the game controller based on the determination of the one or more erroneous game controller signals.

RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.13/898,657 filed May 21, 2013 which is a continuation of U.S.application Ser. No. 13/460,049 filed Apr. 30, 2012 (now U.S. Pat. No.8,452,695 issued on May 28, 2013), which is a continuation of U.S.patent application Ser. No. 11/172,018 filed Jun. 29, 2005 (now U.S.Pat. No. 8,170,945 issued on May 1, 2012), which is acontinuation-in-part of U.S. application Ser. No. 10/759,693 filed Jan.15, 2004 (now U.S. Pat. No. 7,207,885 issued on Apr. 24, 2007), whichare hereby incorporated by reference herein in their entireties.

TECHNICAL FIELD OF THE INVENTION

This invention relates in general to electronic trading and, moreparticularly, to a system and method for providing security to a gamecontroller device for electronic trading.

BACKGROUND OF THE INVENTION

In recent years, electronic trading systems have gained a widespreadacceptance for trading items. For example, electronic trading systemshave been created which facilitate the trading of financial instrumentssuch as stocks, bonds, currency, futures, or other suitable financialinstruments. Such electronic trading systems often have a number ofclients or terminals connected to a trading platform by a communicationsnetwork, such as the Internet or a virtual private network, for example.Each client or terminal of such a trading system may include variousinput devices, such as keyboards or mouses. In some instances, users mayuse keyboards that are specifically designed or configured for use in anelectronic trading system.

SUMMARY OF THE INVENTION

In accordance with the present invention, systems and methods for usingan interface device for electronic trading are provided.

According to one embodiment, a system for electronic trading isprovided. The system includes an interface application having anassociated mapping module that defines a plurality of controller signalrelationships. Each controller signal relationship associates a gamecontroller signal with a trading system command associated with theelectronic trading of financial instruments. The interface applicationis operable to receive a particular game controller signal, to determinethe trading system command associated with the particular gamecontroller signal using the mapping module, and to communicate thedetermined trading system command such that the trading system commandis executed.

According to another embodiment, a method of electronic trading isprovided. A plurality of controller signal relationships are managed.Each controller signal relationship associates a game controller signalwith a trading system command associated with the electronic trading offinancial instruments via a trading platform. A particular gamecontroller signal generated by a game controller is received. Thetrading system command associated with the particular game controllersignal is determined based on the controller signal relationships. Thedetermined trading system command is communicated toward the tradingplatform such that the trading system command may be executed by thetrading platform.

According to yet another embodiment, a method of managing electronictrading is provided. A plurality of controller signal relationships arestored, each controller signal relationship associating one or more of aplurality of game controller signals with one of a plurality of tradingsystem commands associated with the electronic trading of financialinstruments via a trading platform. One or more game controller signalsgenerated by a game controller are received, and at least one of theplurality of controller signal relationships is modified based at leaston the received game controller signals. For example, at least onecontroller signal relationship may be modified if it is determined thatthe received game controller signals are erroneous signals. In someembodiments, a message indicating a proposed modification of aparticular controller signal relationship may be communicated to a userof the game controller. The proposed modification of the particularcontroller signal relationship may be implemented if a response isreceived from the user indicating an acceptance of the proposedmodification.

According to still another embodiment, a method of managing a gamecontroller used for electronic trading is provided. A plurality ofcontroller signal relationships are stored, each controller signalrelationship associating one or more of a plurality of game controllersignals with one of a plurality of trading system commands associatedwith the electronic trading of financial instruments via a tradingplatform. A plurality of game controller signals generated by a gamecontroller are received, one or more of the plurality of received gamecontroller signals are determined erroneous based on the controllersignal relationships, and a command to lock the game controller iscommunicated based on the determination of the one or more erroneousgame controller signals.

Various embodiments of the present invention may benefit from numerousadvantages. It should be noted that one or more embodiments may benefitfrom some, none, or all of the advantages discussed below.

One advantage of the invention is that a game controller, such as agamepad or joystick, may be used to trade electronically tradableinstruments or other items via a trading system. This may allow users toperform various trading functions with greater speed and accuracy thanwith other input devices, such as keyboards or mouses. In addition, someusers may be more familiar with using a game controller than using akeyboard or mouse.

Another advantage of the invention is a user terminal may store gamecontroller configurations for various types and/or models of gamecontrollers such that different types and/or models of game controllersmay be used interchangeably with a particular user terminal. Inaddition, a game controller may be configurable such that a user mayconfigure the game controller as he or she desires. Thus, the gamecontroller may be personalized for the user, which may further increasethe speed and accuracy with which the user can perform tradingfunctions, such as buying or selling financial instruments, for example.

Another advantage is that in some embodiments, the system may identifyerroneous game controller signals received from a game controller basedon a set of stored relationships between game controller signals andtrading system commands. Such erroneous signals may include signalsgenerated by manipulations of the game controller (such as pressing oneor more buttons and/or moving one or more joysticks or directional padsin particular directions) that do not correspond with any trading systemcommand, or that correspond with a trading system command that isinvalid in a particular trading situation. Once the erroneous gamecontroller signals are identified, the system may modify one or more ofthe stored relationships between game controller signals and tradingsystem commands, thus effectively recalibrating particular aspects ofthe game controller. In some embodiments, when erroneous game controllersignals are identified, the system may query the user whether the userintended to select a particular trading system command. The query mayalso include a proposed modification of one or more stored relationshipsbetween game controller signals and trading system commands. Based onthe user's response to the query, the system may implement the proposedmodification of one or more stored relationships between game controllersignals and trading system commands. Thus, the system may monitor auser's behavior, detect erroneous inputs from the user, and propose andimplement recalibrations of the game controller.

Other advantages will be readily apparent to one having ordinary skillin the art from the following figures, descriptions, and claims.

BRIEF DESCRIPTION OF THE DRAWINGS

For a more complete understanding of the present invention and forfurther features and advantages, reference is now made to the followingdescription, taken in conjunction with the accompanying drawings, inwhich:

FIG. 1 illustrates an example trading system in which a user may engagein trading activity using a game controller device according to anembodiment of the present invention;

FIG. 2 illustrates an example game controller device for use in thetrading system shown in FIG. 1;

FIG. 3 illustrates a table that specifies example default controllersignal relationships for the game controller device shown in FIG. 2 inaccordance with one embodiment of the invention;

FIG. 4 illustrates an example method of a user engaging in electronictrading via a trading platform using the game controller device shown inFIG. 2 and configured according to FIG. 3;

FIG. 5 illustrates an example method of configuring and reconfiguringthe controller signal relationships associated with a game controllerdevice according to one embodiment of the invention;

FIG. 6 illustrates an example method of detecting erroneous gamecontroller signals and reconfiguring controller signal relationshipsassociated with a game controller device according to one embodiment ofthe invention; and

FIG. 7 illustrates an example method of determining the number orfrequency of particular received game controller signals andreconfiguring controller signal relationships associated with a gamecontroller device according to one embodiment of the invention.

DETAILED DESCRIPTION OF THE DRAWINGS

Example embodiments of the present invention and their advantages arebest understood. by referring now to FIGS. 1 through 5 of the drawings,in which like numerals refer to like parts.

In general, a game controller device, such as a gamepad or joystick, isused to interface with an electronic trading system, such as to placeorders to buy or sell financial instruments, for example. Configurationsfor various types and/or models of game controllers may be stored andmanaged such that different types and/or models of game controllers maybe used interchangeably at a user terminal. In addition, a gamecontroller may be configurable such that a user may configure the gamecontroller as he or she desires.

FIG. 1 illustrates an example trading system 10 in which a user mayengage in trading activity using a game controller device according toan embodiment of the present invention. As shown, trading system 10includes a number of user terminals 12 coupled to a trading platform 14by a communications network 16. User terminals 12 provide users 22access to engage in trading activity via trading platform 14. A user 22is any entity, such as an individual, group of individuals or firm, thatengages in trading activity via trading system 10.

Trading platform 14 is a trading architecture that facilitates theelectronic trading of financial instruments, such as stocks or otherequity securities, bonds, mutual funds, options, futures, derivatives,and currencies, for example, or any other suitable instruments, goods orservices between users 22. Trading platform 14 may be a computer, aserver, a management center, a single workstation, or a headquarteringoffice for any person, business, or entity that seeks to manage tradingbetween users 22 of trading system 10. Accordingly, trading platform 14may include any suitable hardware, software, personnel, devices,components, elements, or objects that may be utilized or implemented toachieve the operations and functions of an administrative body or asupervising entity that manages or administers a trading environment.

Trading platform 14 may be operable to receive trading orders from users22 and to manage or process those trading orders such that financialtransactions between users 22 may be performed. Trading platform 14 mayhave a link or a connection to a market trading floor, or some othersuitable coupling to any suitable element that allows for suchtransactions to be executed.

Communications network 16 is a communicative platform operable toexchange data or information between trading platform 14 and userterminals 30. Communications network 16 represents an Internetarchitecture in a particular embodiment of the present invention, whichprovides users 22 with the ability to electronically execute trades orinitiate transactions to be delivered to an authorized exchange tradingfloor. In other embodiments, communications system 14 could be anypacket data network (PDN) offering a communications interface orexchange between trading platform 14 and user terminals 30.Communications network 16 may alternatively be any local area network(LAN), metropolitan area network (MAN), wide area network (WAN),wireless local area network (WLAN), virtual private network (VPN),intranet, or any other appropriate architecture or system thatfacilitates communications in a network environment.

A user terminal 12 may include a computer system and appropriatesoftware to allow user 22 to engage in trading activity via tradingplatform 14. As used in this document, the term “computer” refers to anysuitable device operable to accept input, process the input according topredefined rules, and produce output, for example, a personal computer,workstation, network computer, wireless data port, wireless telephone,personal digital assistant, one or more processors within these or otherdevices, or any other suitable processing device.

As shown in FIG. 1, a user terminal 12 may include a terminal body 30, adisplay device 32, and a game controller input device 34. User terminal12 may also include one or more additional input devices 36, such as akeyboard 38 and a mouse 40. Display device 32 may be any suitable devicefor displaying information to a user 22, such as an internal notebookdisplay, a CRT monitor, or a television, for example.

Terminal body 30 includes a processing unit 46 and a memory unit 48 thatstores an interface application 50, which is discussed below. Processingunit 46 may process data associated with trading system 10, which mayinclude executing coded instructions associated with interfaceapplication 50. Memory unit 48 may be coupled to data processing unit 46and may include one or more databases and other suitable memory devices,such as one or more random access memories (RAMs), read-only memories(ROMs), dynamic random access memories (DRAMs), fast cycle RAMs(FCRAMs), static RAM (SRAMs), field-programmable gate arrays (FPGAs),erasable programmable read-only memories (EPROMs), electrically erasableprogrammable read-only memories (EEPROMs), microcontrollers, ormicroprocessors.

Terminal body 30 also includes one or more input ports 54, each of whichprovides an interface for coupling game controller input device 34, oneor more additional input devices 36 and/or other peripheral devices tointerface application 50. Input ports 54 may include various types ofinterfaces, such as USB type ports (such as USB type I or type II ports,for example), keyboard ports, mouse ports, serial ports, parallel ports,or Bluetooth™ or FireWire™ ports, for example. In the example embodimentshown in FIG. 1, terminal body 30 includes a mouse port 56 for mouse 40,a keyboard port 58 for keyboard 38, a serial port 60, and a USB typeport 62. In this embodiment, game controller device 34 may be coupled toeither serial port 60 or USB type port 62, depending on the type ofcable and/or plug provided by the game controller device 34.

In addition, keyboard 38 may include one or more input ports 64 thatallow other input devices to be plugged into keyboard 38. Signalsgenerated by an input device connected to an input port 64 provided bykeyboard 38 are routed through keyboard 38 and keyboard port 58 to whichkeyboard 38 is coupled. In the embodiment shown in FIG. 1, keyboard 38is a customized keyboard 38 designed for electronic tradingapplications, and includes a serial port 68 and a USB type port 70. Insome embodiments, a particular game controller device 34 may be able tobe coupled directly to an input port 54 of terminal body 30, or to aninput port 66 of keyboard 38, which is in turn connected to keyboardport 58 of terminal body 30. In the embodiment shown in FIG. 1, gamecontroller device 34 includes a USB cable 72 which may be plugged intoUSB type port 70 of keyboard 38 or directly into USB type port 62 ofterminal body 30 (as shown by dotted line 74). Alternatively, gamecontroller device 34 may communicate with interface application 50 atleast in part via wireless communications. For example, as shown in FIG.1, game controller device 34 may include a wireless transceiver 76 thatmay communicate wirelessly with a wireless transceiver 78 associatedwith terminal body 30. Such wireless communications may utilize anysuitable wireless communications protocol 30 or protocols. In particularembodiments, communications between wireless transceiver 76 and wirelesstransceiver 78 are communicated according to one or more secure wirelesscommunication protocols or WLAN protocols, such as portions or all ofthe Wired Equivalent Privacy (WEP) protocol, the Robust Security Network(RSN) associated with the IEEE 802.11i protocol, the Advanced EncryptionStandard (AES), the Temporal Key Integrity Protocol (TKIP), ExtensibleAuthentication Protocol over LAN (EAPoL) algorithms or protocols (suchas EAP-TTLS, PEAP, or CISCO's LEAP or EAP-FAST protocols, for example),WiFi Protected Access (WPA) protocol, or WiFi Protected Access Version 2(WPA2) protocol, for example.

Game controller input device 34 may be any of a variety of input devicesused in connection with video or computer gaming, such as a handheldvideo game controller, a joystick or a gamepad, for example. Some gamecontroller devices 34 include a number of buttons as well as one or morejoysticks or directional pads (D-pads). The depression or manipulationof such buttons, joysticks and/or D-pads by a user 22 generates gamecontroller signals which may be received and interpreted by interfaceapplication 50 in order to generate commands related to the functions oftrading system 10, as discussed below. Similarly, keyboard 38 and mouse40 may generate keyboard signals and mouse signals, respectively, whichmay be received and interpreted by interface application 50 in order togenerate commands related to the functions of trading system 10.

Interface application 50 includes one or more applications and modulesthat provide interfaces that allow user 22 to communicate with tradingplatform 14 using various input devices 34 and display device 32. Forexample, such applications and modules may include graphical userinterface (GUI) applications that generate displays of information ondisplay device 32, receive and interpret commands from input devices 34in order to cause changes to the active display on display device 32 andto generate and send messages to trading platform 14, and receive andinterpret messages from trading platform 14 in order to cause changes tothe active display on display device 32 and/or to generate and sendmessages to input devices 34. Interface application 50 may include anysuitable software or coded instructions for providing at least thevarious functionality discussed herein with reference to interfaceapplication 50.

In the embodiment shown in FIG. 1, interface application 50 includes amapping module 80 and a configuration module 81. Mapping module 80defines various relationships for mapping signals received from variousinput devices 34 with various commands regarding trading system 10.Mapping module 80 includes controller signal relationships 82, keyboardsignal relationships 84, and mouse signal relationships 86. Eachcontroller signal relationship 82 associates a game controller signalgenerated by a game controller device 34 with a trading system commandassociated with trading system 10. Each trading system command may be acontrol instruction to alter or manipulate the current display shown ondisplay device 32 (such as an instruction to move a cursor across thedisplay 32, for example) and/or a trading instruction that may becommunicated to or from trading platform 14 (such as an instruction tobuy, sell, or increase a price, for example).

Mapping module 80 may include sets of such controller signalrelationships 82 for various types or models of game controller devices34, as well as for various users 22. Thus, if more than one type ormodel of game controller device 34 is used with a particular userterminal 30, controller signal relationships 82 specific to each type ormodel of game controller device 34 may be stored in and retrieved frommapping module 80. In addition, if more than one user 22 uses aparticular user terminal 30, controller signal relationships 82 specificto each such user may be stored in and retrieved from mapping module 80.The controller signal relationships 82 for each type or model of gamecontroller device 34 and/or for each user 22 may be configurable orreconfigurable such that each user 22 may create his or her own desiredconfiguration. In addition, each type or model of game controller device34 may have a default configuration of controller signal relationships82 maintained by mapping module 80. In an example embodiment, gamecontroller signals may be communicated according to a MICROSOFT DirectX™protocol. In such an embodiment, mapping module 80 may includealgorithms or other software functionality for mapping the receivedDirectX™ game controller signals to trading system commands that may becommunicated to and understood by trading platform 14.

Similar to controller signal relationships 82, each keyboard signalrelationship 84 associates a keyboard signal generated by a keyboard 38with a trading system command associated with trading system 10.Similarly, each mouse signal relationship 86 associates a mouse signalgenerated by a mouse 40 with a trading system command associated withtrading system 10.

Mapping module 80 may also include one or more sets of feedback signalrelationships 88, each associating a signal generated by tradingplatform 14 with a controller feedback command. Controller feedbackcommands are commands that may be used by game controller device 34 toprovide feedback to a user 22 of game controller device 34. For example,controller feedback commands may include commands which cause gamecontroller device 34 to rumble (i.e., vibrate) or light up. In oneembodiment, feedback signal relationships 88 for a particular gamecontroller device 34 include a relationship between an “executed trade”signal generated by trading platform 14 and a “rumble” command for gamecontroller device 34. Thus, when trading platform 14 executes a tradeinvolving a user 22, trading platform 14 generates and communicates an“executed trade” signal to interface application 50, which translatesthe signal into a “rumble” command and communicates the “rumble” commandto game controller device 34, thus causing the game controller device 34to vibrate.

Configuration module 81 cooperates with mapping module 80 to allow users22 to configure (or generate) and/or reconfigure various controllersignal relationships 82. In some embodiments, configuration module 81provides a controller configuration GUI on display device 32 that allowsa user 22 to configure, or generate, a set of controller signalrelationships 82 associated with an unconfigured game controll'er device34, as well as to reconfigure the set of controller signal relationships82 associated with a previously configured game controller device 34. Ina particular embodiment, the controller signal relationships 82associated with a game controller device 34 may be reconfigured anynumber of times.

Mapping module 80 and configuration module 81 may include all orportions of the software or coded instructions associated with interfaceapplication 50. Mapping module 80 and configuration module 81 may alsobe partially or completely integrated. In addition, multiple instancesof mapping module 80 and/or configuration module 81 may be provided byapplication 50.

FIG. 2 illustrates an example game controller device 34 for use intrading system 10. Game controller device 34 is a gamepad that includesa D-pad, a pair of joysticks (Joystick A and Joystick B), and ninebuttons (Button A through Button J). FIG. 3 illustrates a table 90 thatspecifies example default controller signal relationships 82 for thegame controller device 34 of FIG. 2 in accordance with one embodiment ofthe invention. As shown in FIG. 3, each controller signal relationship82 is a relationship between the signal(s) produced by the manipulationof one or more gamepad controls and a trading system command. In thisparticular embodiment, a pair of buttons—buttons “G” and “H”—located ona front surface 92 of game controller device 34 correspond with thecommands “Buy” and “Sell,” respectively. Thus, a user 22 may quickly andeasily enter “Buy” and “Sell” commands using his or her index fingers.

FIG. 4 illustrates an example method of a user 22 engaging in electronictrading via trading platform 14 using the game controller device 34shown in FIG. 2 and configured as described above according to anembodiment of the present invention. In this embodiment, the gamecontroller device 34 is connected to a serial port 68 provided by akeyboard 38 at a user terminal 12, which in tum is connected to akeyboard port 58 of the terminal body 30 of the user terminal 12. Thus,game controller signals generated by game controller device 34 arerouted to application 50 via keyboard 38.

At step 100, mapping module 80 of interface application 50 managesvarious sets of controller signal relationships 82, keyboardrelationships 84, and mouse relationships 86 which map input signalswith commands associated with trading activity within trading system 10.The controller signal relationships 82 include the set of relationshipsshown in FIG. 3, which are the specific to the type and model of gamecontroller device 34. At step 102, the appropriate set of controllersignal relationships 82 for game controller device 34 are identifiedfrom mapping module 80. This may involve any suitable steps orprocesses. For example, interface application 50 may automaticallyidentify the type and/or model of game controller device 34 based onsignals or messages received from game controller device 34, such as acontrol message, for example. As another example, the user 22 mayidentify the type and/or model of game controller device 34 using a GUIdisplayed to the user 22 by interface application 50, such as byselecting the appropriate type and/or model from a list of differentgame controller device types and/or models. In addition, if user 22 hadpreviously reconfigured the controller signal relationships 82 for gamecontroller device 34, interface application 50 may identify theappropriate controller signal relationships 82 for user 22 and gamecontroller device 34. For example, interface application 50 may identifyuser 22 (such as from a user ID entered by user 22, for example) andpresent to the user 22 a display listing one or more sets of controllersignal relationships 82 that have been stored at mapping module 80 inassociation with user 22. User 22 may then select from the list thedesired set of controller signal relationships 82.

At step 104, user 22 initiates a game controller signal by moving theD-pad or joysticks and/or depressing one or more buttons of gamecontroller device 34. At step 106, the game controller signal iscommunicated from game controller device 34 to application 50 via serialport 68, keyboard 38, and keyboard port 58. At step 108, interfaceapplication 50 determines the trading system command associated with thereceived game controller signal using the appropriate controller signalrelationships 82 identified at step 102, and acts accordingly. At step110, interface application 50 determines whether the determined tradingsystem command is a control instruction to alter or manipulate thecurrent display shown on display device 32 or a trading instruction tobe communicated to trading platform 14. If the trading system command isa control instruction, interface application 50 generates the controlinstruction at step 112, which results in the appropriate change ormanipulation to the current display. For example, if the game controllersignal was generated by user 22 moving Joystick A (which is associatedwith a “move cursor” command, as shown in FIG. 3), interface application50 will cause the cursor to be moved around the screen.

Alternatively, if the trading system command is a trading instruction,interface application 50 generates and communicates the appropriatetrading instruction to trading platform 14 at step 114. The appropriateaction is taken by trading platform 14 in response to the receivedtrading instruction at step 116. For example, if the game controllersignal was generated by user 22 depressing both Button 7 and Button 6(which is associated with a “bid” command, as shown in FIG. 3),interface application 50 will generate and communicate to tradingplatform 14 an instruction to place a particular bid for user 22 at step114, and trading platform 14 will receive the instruction and place thebid on trading platform 14 at step 116. Steps 104 through 116 arerepeated as user 22 continues to interact with interface application 50using game controller device 34 in order to engage in trading activitywith trading platform 14.

At step 118, trading platform 14 executes a trade between a buy orderplaced by user 22 and a sell order placed by another user 22 of tradingsystem 10. At step 120, trading platform 14 generates and communicatesto interface application 50 a signal indicating that the buy order wasexecuted for user 22. At step 122, interface application 50 determines,using appropriate feedback signal relationships 88, that the receivedsignal is associated with a “rumble” controller feedback command. Atstep 124, interface application 50 communicates the “rumble” command togame controller device 34, which causes game controller device 34 torumble, or vibrate.

FIG. 5 illustrates an example method of configuring and reconfiguringthe controller signal relationships 82 associated with a game controllerdevice 34 according to one embodiment of the invention. At step 150,interface application identifies that a game controller device 34connected to terminal body 30 is not configured. At step 152,configuration module 81 provides a controller configuration GUI ondisplay device 32 that allows user 22 to configure, or generate, a setof controller signal relationships 82 for the unconfigured gamecontroller device 34. At step 154, user 22 generates and communicatesconfiguration instructions to configuration module 81 via the controllerconfiguration GUI, such as by making selections using the gamecontroller device 34 or another input device 36, such as a keyboard 38or mouse 40. At step 156, configuration module 81 generates controllersignal relationships 82, which are stored by mapping module 80 inassociation with the game controller device 34 and/or user 22. At step158, user 22 engages in trading via trading platform 14 using theconfigured game controller device 34.

At some subsequent time, user 22 wishes to reconfigure one or more ofthe controller signal relationships 82 for the game controller device34. At step 160, user 22 submits a request to reconfigure controllersignal relationships 82 for game controller device 34. At step 162,configuration module 81 provides a controller reconfiguration GUI ondisplay device 32 that allows user 22 to reconfigure the existing set ofcontroller signal relationships 82 for the game controller device 34.The controller reconfiguration GUI may be similar or identical to thecontroller configuration GUI discussed above with reference to step 152.At step 164, user 22 generates and communicates reconfigurationinstructions to configuration module 81 via the controllerreconfiguration GUI, such as by making selections using the gamecontroller device 34 or another input device 36, such as a keyboard 38or mouse 40. At step 166, configuration module 81 reconfigures, orchanges, one or more controller signal relationships 82, which changesare then stored by mapping module 80. At step 168, user 22 engages intrading via trading platform 14 using the reconfigured game controllerdevice 34.

Modifications, additions, or omissions may be made to the method withoutdeparting from the scope of the invention. Additionally, steps may beperformed in any suitable order without departing from the scope of theinvention.

Detecting Erroneous Game Controller Inputs

In some embodiments, interface application 50 is capable of identifyingand/or managing erroneous game controller signals received from a gamecontroller device 34. In general, interface application 50 may identifyerroneous received game controller signals based on a set of storedcontroller signal relationships 82 between game controller signalsgenerated by a game controller device 34 and trading system commandsassociated with trading system 10. As discussed above, game controllersignals may be generated by manipulations of a game controller device34, such as pressing one or more buttons and/or moving one or morejoysticks or D-pads in particular directions, for example. Erroneoussignals that may be identified by interface application 50 may include,for example, (1) game controller signals that do not correspond with anytrading system command stored in the set of controller signalrelationships 82; (2) game controller signals that correspond (based oncontroller signal relationships 82) with a trading system command thatis invalid in a particular trading situation; and (3) game controllersignals that are followed by one or more subsequent game controllersignals received from the game controller in order to cancel or undo theoriginal game controller signals (or the trading system commandassociated with the original game controller signals). For example,suppose interface application 50 receives from a game control er device34 game controller signals generated by a user simultaneously depressingbutton “B” and moving joystick “A” to an upper-left position. Interfaceapplication 50 may determine that this combination of game controllersignals does not correspond with any trading system command stored in aset of controller signal relationships 82 maintained by mapping module,and that the received game controller signals are thus erroneous. Asanother example, interface application 50 may determine that, based on aparticular controller signal relationship 82, this combination of gamecontroller signals corresponds with a trading system command that isinvalid in the particular current trading situation, and that thereceived game controller signals are thus invalid. For instance, thereceived game controller signals may correspond with a “Buy” command,which command may be invalid or improper in the current state of theuser's trading activity. As yet another example, interface application50 may receive from the game controller device 34 one or more subsequentgame controller signals that correspond, based on one or more controllersignal relationships 82, with a command to undo or cancel the originalgame controller signals. Thus, interface application 50 may determinethat the original game controller signals were erroneous.

After one or more erroneous game controller signals are identified,configuration module 81 may modify one or more of the stored gamecontroller relationships 82, thus effectively recalibrating particularaspects of the game controller. In some embodiments, if one or moreerroneous game controller signals are identified, configuration module81 may generate and/or communicate a message to the user 22 of the gamecontroller device 34 (such as via a display device 32, for example).Such message may (1) indicate that erroneous signals were received, (2)query the user 22 regarding the user's intent with respect to theerroneous signals, and/or (3) propose a modification of one or more gamecontroller relationships 82.

In certain embodiments, interface application 50 may determine, based onthe received erroneous game controller signals and the set of gamecontroller relationships 82, one or more particular trading systemcommands that the user 22 may have intended to select. For example,again supposing game controller signals generated by depressing button“B” and moving joystick “A” to an upper-left position are received anddetermined erroneous, interface application 50 may determine that theuser 22 may have intended to select (a) an “increase order by 5 units”trading system command corresponding with depressing button “B” andmoving joystick “A” to an upper position, or (b) a “decrease bid priceby 1 tick” trading system command corresponding with depressing button“B” and moving joystick “A” to a leftward position. Interfaceapplication 50 may utilize any suitable algorithms or methodology todetermine such potentially-intended trading system commands. Forexample, application 50 may process prior trading history associatedwith the particular user to make the determination. In addition,interface application 50 may use other parameters associated with thecurrent trade to make this determination.

Such identified potentially-intended trading system commands may belisted in the message communicated to user 22. For example, the messagemay list the identified potentially-intended trading system commands andask the user 22 whether the user 22 intended to select one of suchcommands. In addition, for each identified trading system command, themessage may propose a modification of the corresponding game controllerrelationship 82 that would map that identified trading system command tothe game controller signals received from the user 22. Thus, continuingthe example discussed above, the message communicated to the user 22 mayinclude the following proposed modifications to game controllerrelationships 82:

(a) mapping the signals generated by depressing button “B” and movingjoystick “A” to an upper-left position with the “increase order by 5units” trading system command (currently mapped to depressing button “B”and moving joystick “A” to an upper position, as discussed above); and

(b) mapping the signals generated by depressing button “B” and movingjoystick “A” to an upper-left position with the “decrease bid price by 1tick” trading system command (currently mapped to depressing button “B”and moving joystick “A” to a leftward position, as discussed above).

If the user 22 responds to the message (such as via the game controllerdevice 34) by selecting one of the proposed mapping modifications,configuration module 81 may implement the proposed modification to therelevant game controller relationship 82. In this manner, interfaceapplication 50 may monitor a user's behavior, detect erroneous inputsfrom the user, and propose and implement recalibrations of the user'sgame controller device 34.

Interface application 50 may store game controller signals received fromone or more game controller devices 34 in one or more signal logs 180.In some embodiments, interface application 50 identifies erroneous gamecontroller signals received from a game controller device 34 based ongame controller signals stored in an associated signal log 180. Inaddition, configuration module 81 may modify one or more controllersignal relationships 82, or propose modifications of one or morecontroller signal relationships 82, based on an analysis of one or moresignal logs 180. For example, configuration module 81 may modify orpropose a modification of a particular controller signal relationship 82if a particular number or frequency of erroneous signals are identifiedin a signal log 180. In some embodiments, if interface application 50determines based on signal log 180 that a particular erroneous signalhas been received from a game controller device 34 a number of times orwith a frequency that equals or exceeds a predetermined numericalthreshold, configuration module 81 of interface application 50 maycommunicate to the user 22 of the game controller device 34 a messageindicating a proposed modification of one or more particular controllersignal relationships 82.

For example, if game controller signals stored in a signal log 180indicate that a user has erroneously moved a joystick to the down-rightposition rather than the straight-down position when attempting toimplement a particular trading command more than a threshold number oftimes (say, for example, 10 times) or more than a threshold frequency(say, for example, twice per hour), configuration module 81 maycommunicate to the user 22 of the game controller device 34 a messageindicating a proposed modification of a particular controller signalrelationship 82 in order to correspond the particular trading commandwith the down-right position (rather than the straight-down position) ofthe joystick. Such message may be communicated to the user 22 via adisplay device 32, for example. If the user 22 communicates a responseto the message that indicates an acceptance of the proposed modificationof the particular controller signal relationship 82, configurationmodule 81 may implement the modification of the particular controllersignal relationship 82.

FIG. 6 illustrates an example method of detecting erroneous gamecontroller signals and reconfiguring controller signal relationships 82associated with a game controller device 34 according to one embodimentof the invention. At step 200, interface application 50 receives one ormore game controller signals generated by a game controller device 34being manipulated by a user 22, such as by pressing one or more buttonsand/or moving one or more joysticks or D-pads in particular directions,for example. At step 202, interface application 50 may store receivedgame controller signals in a signal log 180 associated with the gamecontroller device 34. At step 204, interface application 50 determineswhether the one or more game controller signals received at step 200 areerroneous based on a set of stored controller signal relationships 82between game controller signals generated by a game controller device 34and trading system commands associated with trading system 10. Asdiscussed above, such erroneous signals may include, for example, (1)game controller signals that do not correspond with any trading systemcommand stored in the set of controller signal relationships 82; (2)game controller signals that correspond (based on controller signalrelationships 82) with a trading system command that is invalid in aparticular trading situation; or (3) game controller signals followed bysubsequent game controller signals to cancel or undo the original gamecontroller signals (or the trading system command associated with theoriginal game controller signals).

If the received game controller signal(s) are determined not to beerroneous at step 204, the trading system command(s) associated withsuch received game controller signals may be determined by interfaceapplication 50 and communicated to trading platform 14 at step 206. Themethod may return to step 200 to receive additional game controllersignals from the game controller device 34. Alternatively, if thereceived game controller signal(s) are determined to be erroneous, themethod proceeds to step 208 where interface application 50 may furtherdetermine, based on signal log 180, whether the particular erroneousgame controller signal(s) has been received form the game controllerdevice 34 a predetermined threshold number of times or with apredetermined threshold frequency, as discussed above. If the particularerroneous game controller signal(s) has not been received thepredetermined threshold number of times or with the predeterminedthreshold frequency, the method may return to step 200 to receiveadditional game controller signals from the game controller device 34.However, if the particular erroneous game controller signal(s) has beenreceived the predetermined threshold number of times or with thepredetermined threshold frequency, at step 210 configuration module 81may communicate to the user 22 of the game controller device 34 (via adisplay device 32, for example) a message indicating a proposedmodification of one or more particular controller signal relationships82.

At step 212, interface application 50 receives a response to the messagefrom the user 22 of the game controller device 34. If the responseindicates an acceptance of the proposed modification of the particularcontroller signal relationship(s) 82, configuration module 81 mayimplement the modification of the particular controller signalrelationship(s) 82 at step 214. The method may return to step 200 toreceive additional game controller signals from the game controllerdevice 34. If the response indicates a denial of the proposedmodification of the particular controller signal relationship(s) 82,configuration module 81 may not implement the modification, as indicatedat step 216, and the method may return to step 200 to receive additionalgame controller signals from the game controller device 34.

Managing Default Settings

In some embodiments, interface application 50 is capable of managingdefault settings for the configuration of a game controller device 34,which may include managing default settings for game controllerrelationships 82. Using any suitable statistical modeling or analysis,interface application 50 may determine the number and/or frequency ofinstances of one or more particular received game controller signalsstored in one or more signal logs 180. Based on such determined numberand/or frequency of instances of one or more particular received gamecontroller signals, configuration module 81 may modify or propose amodification of one or more particular controller signal relationships82, such as to tailor the configuration of the game controller device 34to the trading activity of the user 22. In particular embodiments,configuration module 81 may communicate a message to the user 22proposing a modification of one or more particular controller signalrelationships 82 if the number and/or frequency of instances of one ormore particular received game controller signals exceeds a predeterminedthreshold.

For example, suppose each depression of button A increases the bid sizefor a bid order by one unit (e.g. one share). Thus, a particularcontroller signal relationship 82 corresponds the game controller signalgenerated by pressing button A with the trading command of increasingthe bid size for a bid order by one unit. Further suppose that aparticular user 22 often submits bid orders in sizes of multiples offive units (e.g., 5 shares, 10 shares, 15 shares, etc.) by pressingbutton A in multiples of five repetitions. Based on the number and/orfrequency of instances of receiving game controller signals forsubmitting bid orders in sizes of multiples of five units, configurationmodule 81 may communicate a message to user 22 proposing to modify theparticular controller signal relationship 82 such that each depressionof button A increases the bid size for a bid order by five units. If theuser 22 accepts the proposed modification of the particular controllersignal relationship 82, configuration module 81 may implement themodification. It should be understood that this is merely an example,and that configuration module 81 may modify or propose a modification ofany one or more controller signal relationships 82 based on thedetermined number and/or frequency of instances of one or moreparticular received game controller signals.

FIG. 7 illustrates an example method of determining the frequency ofparticular received game controller signals and reconfiguring controllersignal relationships associated with a game controller device 34according to one embodiment of the invention. At step 250, interfaceapplication 50 receives one or more game controller signals generated bya game controller device 34 being manipulated by a user 22, such as bypressing one or more buttons and/or moving one or more joysticks orD-pads in particular directions, for example. At step 252, interfaceapplication 50 may store received game controller signals in a signallog 180 associated with the game controller device 34. At step 254,interface application 50 determines whether the number and/or frequencyof instances of one or more particular received game controller signalsstored in signal log 180 meet or exceed a predetermined threshold value.For example, interface application 50 may determine the frequency atwhich user 22 submits particular trading system commands over timeand/or in particular trading situations, and determine whether suchfrequency exceeds a predetermined threshold frequency. For instance,interface application 50 may determine the frequency at which user 22enters signals for submitting trading orders in multiples of 10 shares,as opposed to submitting trading orders of other sizes, and whether thedetermined frequency exceeds a threshold frequency predetermined forsuch signals.

If the determined number and/or frequency of instances of one or moreparticular received game controller signals does not meet or exceed thepredetermined threshold value, the method may return to step 250 tocontinue receiving game controller signals. However, if the determinednumber and/or frequency of instances of one or more particular receivedgame controller signals meets or exceeds the predetermined thresholdvalue, configuration module 81 may communicate a message to the user 22proposing a modification of one or more particular controller signalrelationships 82, as indicated at step 256. At step 258, a response tothe message is received from the user 22 of the game controller device34. If the response indicates an acceptance of the proposed modificationof the particular controller signal relationship(s) 82, configurationmodule 81 may implement the modification of the particular controllersignal relationship(s) 82 at step 260. The method may return to step 250to receive additional game controller signals from the game controllerdevice 34. If the response indicates a denial of the proposedmodification of the particular controller signal relationship(s) 82,configuration module 81 may not implement the modification, as indicatedat step 262, and the method may return to step 250 to receive additionalgame controller signals from the game controller device 34.

Security Features

Trading system 10 may include one or more various security features formanaging access to game controller device 34 and/or trading platform 14.For example, in particular embodiments, as shown in FIG. 2, gamecontroller device 34 includes a fingerprint reading device 94 operableto obtain an image 95 of a user's fingerprint or thumbprint such thatgame controller device 34 may only be used by authorized users 22. Auser 22 may place his finger or thumb against fingerprint reading device94, which may obtain (e.g. scan) an image 95 of the fingerprint orthumbprint. The fingerprint image 95 may be stored by game controllerdevice 34 and/or interface application 50. In order to begin a tradingsession using game controller device 34, a user 22 may be required toscan his or her fingerprint using fingerprint reading device 94. If theuser 22's fingerprint image matches the stored fingerprint image 95 ofan authorized user 22, the user 22 may begin using game controllerdevice 34. For example, game controller device 34 may remain locked whenunused and may be unlocked when fingerprint reading device 94 reads anauthorized fingerprint. Alternatively, if the user 22's fingerprintimage does not match the stored fingerprint image 95 of an authorizeduser 22, the user 22 may be prevented from using game controller device34, at least for accessing trading platform 14. For example, gamecontroller device 34 may remain locked upon fingerprint reading device94 reading the unauthorized fingerprint.

Fingerprint reading device 94 may include any suitable device or devicesoperable to obtain an image (or other data) of a finger or thumb print,such as optical scanning devices or capacitance scanning devices, forexample. Fingerprint images 95 may be stored in any suitable location,such as within game controller device 34 or by memory 48. In addition,software for analyzing fingerprint images 95, including comparing storedfingerprint images 95 for authorized users 22 with newly receivedfingerprint images (for determining whether a user 22 is authorized, forexample), may be associated with and/or stored within game controllerdevice 34 or by memory 48. For example, in the embodiment shown in FIG.1, such functionality is provided by interface application 50.

In addition, in the embodiment shown in FIG. 2, game controller device34 may include an access granted indicator 96 and an access deniedindicator 98. Access granted indicator 96 may indicate when anauthorized fingerprint image has been obtained by fingerprint readingdevice 94 (thus allowing game controller device 34 to be used by theuser 22, as discussed above) while access denied indicator 98 mayindicate when an unauthorized fingerprint image has been obtained byfingerprint reading device 94 (thus preventing game controller device 34from being used by the user 22, as discussed above). Access grantedindicator 96 and access denied indicator 98 may comprise any suitabledevices for communicating data to a user 22, such as lights, bells orbuzzers, for example.

In some embodiments, trading system 10 utilizes configurable securitycodes for regulating access to game controller device 34 and/or tradingplatform 14. For example, a user 22 may enter a user-selected securitycode including a series of one or more game controller signals generatedby manipulating the various features of the game controller device 34.The user-selected security code may then be stored, such as by gamecontroller device 34 or interface application 50, for example. The user22 may then be required to enter the stored security code (using thegame controller device 34) to begin new trading sessions.

In some embodiments, the game controller device 34 may lockautomatically, such as at the end of a trading session, after somepredetermined period of non-use, or otherwise. In other embodiments, theuser 22 may select a first, locking security code for locking the gamecontroller device 34 and a second, unlocking security code for unlockingthe game controller device 34. The user 22 may then use the locking andunlocking security codes for locking and unlocking the game controllerdevice 34 as desired. The user-selected locking and unlocking securitycodes may be the same or different codes. For example, suppose a user 22selects a locking security code by submitting the following sequence ofactions: pressing button A, pressing button F, pressing button E, andmoving joystick A right. Further suppose the user 22 selects anunlocking security code having the same or a different sequence ofactions. Thus, any suitable sequence of actions will serve to lockand/or unlock the game controller device 34 for use.

Game controller device 34 may also include an auto-lock feature thatlocks the game controller device 34 automatically in response toreceiving a particular number of erroneous inputs or a particular numberof simultaneous inputs. For example, game controller device 34 may lockitself if a predetermined number (or more) of erroneous inputs arereceived consecutively, such as if a user 22 submits a particular numberof consecutive improper commands. As another example, game controllerdevice 34 may lock itself if a predetermined number (or more) of inputsare received consecutively, such as if the game controller device 34 isdropped or grabbed accidentally. Such features may reduce the number ofunintended or improper game controller signals being communicated by agame controller device 34.

Although an embodiment of the invention and its advantages are describedin detail, a person skilled in the art could make various alterations,additions, and omissions without departing from the spirit and scope ofthe present invention as defined by the appended claims.

1. (canceled)
 2. A method comprising: controlling, by at least oneprocessor, storing a plurality of controller signal relationshipscomprising a plurality of first controller signal relationships, eachcontroller signal relationship associating one or more game controllersignals with one of a plurality of trading system commands associatedwith electronic trading of financial instruments via a trading platform;receiving a plurality of first game controller signals generated via afirst game controller; determining, based on the first controller signalrelationships and the plurality of first game controller signals,whether one or more of the plurality of first game controller signals iserroneous; and when one or more of the plurality of first gamecontroller signals is determined to be erroneous, locking the first gamecontroller.
 3. The method of claim 2, wherein the locking includingcommunicating an instruction to lock the first game controller.
 4. Themethod of claim 2, wherein determining whether one or more of theplurality of first game controller signals is erroneous comprisesdetermining, based on the first controller signal relationships, whetherone or more of the plurality of first game controller signals does notcorrespond with any of the plurality of trading system commands.
 5. Themethod of claim 2, wherein determining whether one or more of theplurality of first game controller signals is erroneous comprises:determining first trading system commands associated with one or more ofthe plurality of first game controller signals based on the plurality ofcontroller signal relationships; and determining whether one or more ofthe first trading system commands is an invalid command in a state oftrading activity in which the one or more of the plurality of first gamecontroller signals is received.
 6. The method of claim 3, whereincommunicating an instruction to lock the first game controllercomprises: determining whether a number of erroneous first gamecontroller signals meets or exceeds a predetermined threshold; when thenumber of erroneous first game controller signals is determined to meetor exceed a predetermined threshold, preventing execution of any tradingsystem command originating from the first game controller.
 7. The methodof claim 3, wherein communicating an instruction to lock the first gamecontroller comprises: determining whether a number ofconsecutively-received erroneous first game controller signals meets orexceeds a predetermined threshold; and when the number ofconsecutively-received erroneous first game controller signals isdetermined to meet or exceed a predetermined threshold, preventingexecution of any trading system command originating from the first gamecontroller.
 8. The method of claim 3, wherein communicating aninstruction to lock the first game controller comprises: determiningwhether a number of erroneous first game controller signals receivedwithin a predetermined time period meets or exceeds a predeterminedthreshold; when the number of erroneous first game controller signalsreceived within a predetermined time period is determined to meet orexceed a predetermined threshold, preventing execution of any tradingsystem command originating from the first game controller.
 9. The methodof claim 2, further comprising: controlling, by the at least oneprocessor: receiving second game controller signals generated by asecond game controller; determining trading system commands associatedwith the second game controller signals; and communicating the tradingsystem commands toward a trading platform such that the trading systemcommands may be executed by the trading platform to perform electronictrading of financial instruments via a trading platform.
 10. The methodof claim 9, further comprising: controlling, by the at least oneprocessor: receiving one or more third game controller signals generatedby the second game controller; determining whether the one or more thirdgame controller signals match a stored security code; and when the oneor more third game controller signals is determined to match the storedsecurity code, locking the second game controller.
 11. The method ofclaim 9, further comprising: controlling, by the at least one processor:receiving one or more security game controller signals generated by thesecond game controller, the one or more security game controller signalscomprising second game controller signals associated with a configurablesecurity code for locking the second game controller; determining aconfigurable security code based on the one or more security gamecontroller signals; and storing the configurable security code.
 12. Themethod of claim 9, further comprising: controlling, by the at least oneprocessor: receiving baseline fingerprint data associated with a user ofthe second game controller; receiving from the second game controlleruser fingerprint data associated with the user; and determining whetherto provide the user access to the trading platform based at least on thereceived user fingerprint data, wherein determining whether to providethe user access to the trading platform based at least on the receiveduser fingerprint data comprises comparing the user fingerprint data withthe baseline fingerprint data.
 13. The method of claim 9, whereinreceiving second game controller signals generated by the second gamecontroller comprises: receiving game controller signals associated witha buy command generated by depressing a first button located on a firstfront region of the second game controller; and receiving gamecontroller signals associated with a sell command generated bydepressing a second button located on a second front region of thesecond game controller.
 14. The method of claim 13, wherein the firstfront region and second front region of the second game controller arelocated on a front surface of the second game controller.
 15. The methodof claim 7, in which the plurality of game controller signals are gamecontroller signals of a game controller comprising a first joystick, asecond joystick, and a d-pad.
 16. The method of claim 15, in which: theplurality of first game controller signals comprises a plurality ofdirectional inputs of the first joystick, each of the plurality ofdirectional inputs being generated by causing a stick portion of thefirst joystick to move from a central position radially outward from thecentral position in one of a plurality of directions spanning 360degrees around the central position, the one or more erroneous gamecontroller signals comprise at least one of the plurality of directionalinputs, and the plurality of controller signal relationships comprises aplurality of first controller signal relationships associating (1)controller signals comprising at least one directional signal from thefirst joystick with one of the plurality of trading system commands and(2) controller signals comprising at least one directional signal fromthe second joystick with another one of the plurality of trading systemcommands.
 17. An apparatus comprising: at least one processor configuredto control: storing a plurality of controller signal relationshipscomprising a plurality of first controller signal relationships, eachcontroller signal relationship associating one or more game controllersignals with one of a plurality of trading system commands associatedwith electronic trading of financial instruments via a trading platform;receiving a plurality of first game controller signals generated by afirst game controller; determining based on the first controller signalrelationships and the plurality of first game controller signals,whether one or more of the plurality of first game controller signals iserroneous; and when one or more of the plurality of game controllersignals is determined to be erroneous, locking the first gamecontroller.
 18. The apparatus of claim 17, wherein the locking includingcommunicating an instruction to lock the first game controller.
 19. Theapparatus of claim 18, in which: the one or more of a plurality of gamecontroller signals are game controller signals of a game controllercomprising a first joystick, a second joystick, and a d-pad; eachjoystick is configured for movement away from a center position in aplurality of directions spanning 360 degrees, the plurality of firstgame controller signals comprises a plurality of directional inputs ofthe first joystick, the one or more erroneous game controller signalscomprise at least one of the plurality of directional inputs, and theplurality of controller signal relationships comprises a plurality offirst controller signal relationships associating (1) controller signalscomprising at least one directional signal from the first joystick withone of the plurality of trading system commands and (2) controllersignals comprising at least one directional signal from the secondjoystick with another one of the plurality of trading system commands.20. The apparatus of claim 18, wherein the at least one processor isconfigured to control: storing: a first set of controller signalrelationships, the first set associated with a first user and with afirst type of game controller; a second set of controller signalrelationships, the second set associated with the first user and with asecond type of game controller; and a third set of controller signalrelationships, the third set associated with a second user and with thefirst type of game controller; in which at least one controller signalrelationship associates one of a plurality of game controller signalswith one of a plurality of trading system commands associated with theelectronic trading of financial instruments; wherein the at least oneprocessor is configured to control: identifying a specific userassociated with a specific game controller; identifying a specificcontroller type associated with the specific game controller;determining at least one of the sets of controller signal relationshipsbased at least in part on the specific user and the specific controllertype; receiving a specific game controller signal from the specific gamecontroller; determining the trading system command associated with thespecific game controller signal based at least in part on the at leastone of the sets of controller signal relationships; and communicatingthe determined trading system command such that the trading systemcommand is executed.
 21. A non-transitory machine-readable mediumconfigured to store instructions which, when executed by at least oneprocessor, control: storing a plurality of controller signalrelationships comprising a plurality of first controller signalrelationships, each controller signal relationship associating one ormore game controller signals with one of a plurality of trading systemcommands associated with electronic trading of financial instruments viaa trading platform; receiving a plurality of first game controllersignals generated by a first game controller; determining based on thefirst controller signal relationships and the plurality of first gamecontroller signals, whether one or more of the plurality of first gamecontroller signals is erroneous; and when one or more of the pluralityof game controller signals is determined to be erroneous, locking thefirst game controller.